Finding the Fourth Proportional to 2,738.52, 4,108.38 and 790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.52 : 4,108.38 = 790.72 : x
2. Step 2: Convert to fraction form
   2,738.52/4,108.38 = 790.72/x
3. Step 3: Cross multiply
   2,738.52x = 4,108.38 × 790.72
4. Step 4: Simplify right side
   2,738.52x = 3,248,578.23
5. Step 5: Solve for x
   x = 3,248,578.23/2,738.52
6. Step 6: Final answer
   x = 1,186.25